Support for armature cross-connectors.



G. H. KRAUSKOPF.

SUPPORTFOR ARMATURE CROSS CONNECTORS. APPLICATION FILED IAN. I5. I913.

1 ,229/759 Patented June 12, 1917. Saw u I INVENTOR QTYJWW UNITED STATESPATENT OFFICE.

GEORGE H. KRAUSKOPF, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO WESTING-HOUSE ELECTRIC AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYL-VANIA.

Application filed January 15, 1913.

To all whomit may concern.

Be it known that I, GEORGE H. KnAUsKorr, a citizenof the United States,and a resident of Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented a new and useful Improvement in Supports forArmature Cross-Connectors, of which the following is a specification.

My invention relates to dynamo-electric machines, and it has specialreference to cross-connectors for armature conductors and to supportingmeans for such connectors.

The object of my invention is to provide a compactly-nesting and readilyconstructed set of cross-connectors, which, together with suitablesupporting means, shall form a permanentunit adapted for readyattachment to the frame of the machine. I Ieretofore, cross-connectorshave been constructed and assembled in a very different way from thathereinafter described, and have not embodied a similar detachablefeature.

According to my present invention, I provide a set of nestingcross-connectors severally. disposed on edge and permanently bound withwire upon one leg of a substantially Z-shaped ring member, the other legof which fits beneath an integral longitudinally projecting flange uponthe end-plates of the armature.

My invention may best be understood by reference to the accompanyingdrawings, in which Figure 1 is a view, in end elevation, with partsbroken away for clearness, of a portion of the armature of adynamo-electric machine embodying my invention. Fig. 2 is a view of adevelopment with parts broken away, of a portion of the cylindricalsurface of an armature employing my invention. Fig. 8 is a longitudinalsectional view of a portion of the armature shown in Figs. 1 and 2, andFig. at is a view, with parts broken away,'of the details of the jointsbetween the cross connectors and the armature conductors.

Referring to the drawings, an armature core 1 1s provided with anend-plate 2 hav ing an integral longitudinally-projecting flange 3. Oneleg of a detachable ring t, of substantially Z-shape section, engages aportion of the inner surface of the flange 3, being. suitably attachedto the end-plate 2 at regular intervals.

The outer portion of the inside surfaceof Specification of LettersPatent.

Patented June 12, 191'7.

Serial No. 742,144.

flange 3, in conjunction with the other leg' of detachable ring 4t,forms a circumferentially disposed recess 5, the walls including whichare suitably insulated. The cross connectors (3 are composed of strapconductors disposed on edge, and are appropriately fashioned forprogressive connection to armature conductors 7 and for compact nestingwithin the circumferential recess 5. The connectors (3 severallycomprise converging wing portions joined by a longitudinally extendingloop 6 In actual practice, it is found more convenient and stable to laythe cross-connectors G edgewise upon the insulated leg of :thedetachable ring L, securely bind the nesting wing portions and loops 6with wire 8, and thus form a compact unit which is placed in engagementwith the inside face the flange 8 and securely held in position, ashereinbefore described.

The suitably drilled ends 9 of the crossconnectors 6 are fastened to thecorresponding armature conductors 7 for completing the proper circuits,as shown in Fig. 4c. In the particular machine described as embodying myinvention, the connections of the cross-connectors (l and conductors 7,are made as follows:

The conductors T, forming a coil group 10, ha the usual rear end loop11. The middle conductor 12 is provided with a secondary loop 13flattened upon itself and projecting radially at right anglesto loop 11.The secondary loop 13 is suitably drilled for conncction with theappropriately bent ends 9 of the cross-connectors 6.

I do not wish to be restricted to the specific details hereinbefore setforth, but desire that only such limitations be imposed as are indicatedin the appended claims.

I claim as my invention:

1. In a dynamo-electric machine, the combination with a rotatable memberembodying an end-plate provided with an integral, longitudinallyprojecting, annular flange, and a winding comprising a plurality ofconductors, of a supporting ring partially engaging the inner surface ofsaid flange, a plurality of strap cross-connectors disposed on edge andassociated with said conductors, the convergent halves of each connectorbeing disposed inwardly in a longitudinal direction, means forpermanently attaching the'same t0 the unengaged portion of saidsupporting ring, and means for attaching said supporting ring to saidend-plate.

2. In a dynamo-electric machine, the combination with a rotatable memberembodying an end-plate provided with an integral, longitudinallyprojecting, annular flange, and a winding comprising a plurality ofconductors, of a supporting ring, of substantially Z-shape incross-section, a portion of which engages the inner surface of saidflange and forms a longitudinally-disposed annular recess, a pluralityof strap erossconnectors disposed on edge and connected to saidconductors, the halves of each COIIIIQCtOI being centrally convergentand disposed within said annular recess, means for binding saidcross-connectors to said supporting ring, and means for attaching saidsupporting ring to said end-plate.

3. In a dynamo-electric machine, the combination with a rotatable memberembodying an end-plate provided with an integral, longitudinallyprojecting, annular flange, and a winding comprising a plurality ofconductors, of a supporting ring of substantially Z- shape incross-section and having one leg which is fitted tightly within saidflange, a plurality of strap cross-connectors disposed on edge andconnected to said conductors and severally having the convergent halvesdisposed inwardly in a longitudinal direction and symmetrically locatedupon the other leg of said supporting ring, means for securely bindingsaid cross-connectors there to, and means for attaching said supportingring to said end-plate.

4. In a dynamo-electric machine, the combination with a rotatable memberprovided with a Winding comprising a plurality of conductors, of anend-plate attached to said member, provided with an integral,longitudinally-projecting annular flange, a ring member having a portionwhich engages the inner surface of said flange and another portion whichis adapted to form an annular recess with said flange for receivingcross-connectors for said conductors, and means for attaching said ringmember to said endplate.

5. In a dynamo-electric machine, the com bination with a rotatablemember provided with a winding comprising a plurality of conductors, ofan end plate attached to said member and provided with an integral,longitudinally-projecting annular flange, a ring of substantiallyZ-shape in section and having one leg fitted tightly within said flangeand the other leg forming an annular recess with said flange forreceiving crossconnectors for said conductors, and means for removablyattaching said ring to said end-plate.

6. In a dynamo-electric machine, the combination with a rotatable memberprovided with a winding comprising a plurality of conductors, of aplurality of cross-connecting members severally comprising convergingwing portions, the said members being progressively arranged so that thewing portions thereof form a composite ring-like structure.

7. In a dynan'lo-electric machine, the combination with a rotatablemember provided with a winding comprising a plurality of conductors, ofa plurality of cross-connecting members severally comprising convergingwing portions, the said members being arranged so that the adjacent wingportions thereof nest together, to form a composite ring-like structure.

8. In a dynanioelectric machine, the combination with a rotatablemenll'icr provided with a winding comprising a plurality of conductors,of a longitudinally-projecting annular flange attached to said rotatablemember, a ring of substantially Z-shape in section and having one legfitted tightly within said flange and the other leg forming an annularrecess with said flange for receiving cross-coimectors for saidconductors, and means for removably attaching said ring to saidrotatable member.

9. In a dynamo-electric machine, the com bination with a rotatablemember provided with a winding comprising a plurality of conductors, ofa longitudinally-projecting annular flange associated with saidrotatable member, and a detachable unitary structure for engaging theinner surface of said flange and comprising a supporting means and aplurality of cross-connectors for said conductors disposed on edge andforming a compact unit with said supporting means.

10. In a dynamo-electric machine, the combination with a rotatablemember provided with a winding comprising a plurality of conductors, ofa longitudinally-projecting annular flange attached to said rotatablemember, and a detachable unitary structure fitting closely within saidflange and comprising a rigid supporting member and a plurality ofcross-connectors for said conductors disposed on edge and permanentlybound to said supporting member.

11. In a dynamo-electric machine, the combination of a multi-conductorcoil ha"- ing a longitudinally projecting end loop, one conductorthereof having an additional transversely extending portion, and acrossconnecting member electrically connected to said portion.

12. In a dynamo-electric machine, the combination of a multi-conductorcoil having a longitudinally projecting end loop, one conductor thereofhaving a transversely-ex 1 tending flattened loop, and a plurality ofcross-connecting members electrically connected to said second loop andextending in opposite directions.

l3. In a dynamo-electric machine, the

combination with a magnetizable core having a plurality of slots, and aplurality of multiconductor coils severally disposed in correspondingpairs of said slots and having longitudinally projecting end loops, oneconductor of each of said loops having a radially-extending flattenedloop, and a plurality of circui'nferentially-disposed cross-connectorshaving their ends severally secured to corresponding flattened loops.

let. In a dynamo-electric machine, the combination with a magnetizablecore having a plurality of slots, and a plurality of multi-conductorcoils severally disposed in corresponding pairs of said slots and havinglongitudinally projecting end loops, an intermediate conductor of eachof said loops having a flattened loop extending radially inwardly fromthe end of the associated end loop, and a plurality ofoircumi'erentiallylocated, edgeWise-disposed cross-connectors severallyhaving their ends secured to corresponding flattened loops andcollectively adapted to form a compact nesting structure.

In testimony whereof, I have hereunto subscribed my name this 9th day ofJanuary 1913.

GEORGE H. KRAUSKOPF.

Witnesses O. H. lVAnNooK, B. B. Hmns.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

